<template>
    <div class= "login-c">
        <div class="login-b">
            <!-- 头像区 -->
            <div class="ava">
                <img src="../assets/logo.png" alt="">
            </div>
            <!-- 登陆表单区 -->
            <el-form ref="loginref" :model="loginform" :rules="loginformrules" label-width="0px" class="login-f">
              <!-- 用户名 -->
              <el-form-item prop="username">
                <el-input v-model="loginform.username" prefix-icon="el-icon-search"></el-input>
              </el-form-item>
              <!-- 密码 -->
              <el-form-item prop="password">
                <el-input v-model="loginform.password" prefix-icon="el-icon-search" type="password"></el-input>
              </el-form-item>
              <!-- 按钮 -->
              <el-form-item class="btns">
                 <el-button type="primary" @click="login">登录</el-button>
                 <el-button type="info" @click="resetlogin">重置</el-button>
              </el-form-item>
            </el-form>
        </div>
    </div>
</template>

<script>
export default {
  data () {
    return {
      // 登录表单的数据绑定对象
      loginform: {
        username: 'admin',
        password: '123456'
      },
      //   验证规则对象
      loginformrules: {
        //   验证用户名是否合法
        username: [
          { required: true, message: '请输入登录名称', trigger: 'blur' },
          { min: 3, max: 5, message: '长度在3 到10 个字符', trigger: 'blur' }
        ],
        //  密码是否合法
        password: [
          { required: true, message: '请输入登录名称', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在6 到15 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    //   点击重置按钮
    resetlogin () {
      this.$refs.loginref.resetFields()
    },
    login () {
      this.$refs.loginref.validate(async valid => {
        if (!valid) return
        const { data: res } = await this.$http.post('login', this.loginform)
        if (res.meta.status !== 200) return this.$message.error('登录失败')
        this.$message.success('登录成功')
        // 将token保存到sessionstorage中
        window.sessionStorage.setItem('token', res.data.token)
        this.$router.push('/home')
      })
    }
  }
}
</script>

<style lang="less" scoped>
.login-c{
    background-color: #2b4b6b;
    height: 100%;
}

.login-b{
    width: 450px;
    height: 300px;
    background-color: #fff;
    border-radius: 3px;
    position: absolute;
    left:50%;
    top:50%;
    transform: translate(-50%, -50%);
    .ava{
        height: 130px;
        width: 130px;
        border: 1px solid #eee;
        border-radius: 50% ;
        padding: 10px;
        box-shadow: 0 0 10px #ddd;
        position: absolute;
        left: 50%;
        transform: translate(-50%,-50%);
        background-color: #fff;
        img{
           height: 100%;
           width: 100%;
           border-radius: 50% ;
           background-color: #eee;
        }
    }
}
.btns{
    display: flex;
    justify-content: flex-end;
}
.login-f{
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
}
</style>
